Home / 147,618.40-221,515.08-138,278.04

Finding the Fourth Proportional to 147,618.40, 221,515.08 and 138,278.04

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Solution

The fourth proportional to 147,618.40, 221,515.08 and 138,278.04 is: 207,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,618.40 : 221,515.08 = 138,278.04 : x
  2. Step 2: Convert to fraction form
    147,618.40/221,515.08 = 138,278.04/x
  3. Step 3: Cross multiply
    147,618.40x = 221,515.08 × 138,278.04
  4. Step 4: Simplify right side
    147,618.40x = 30,630,671,092.84
  5. Step 5: Solve for x
    x = 30,630,671,092.84/147,618.40
  6. Step 6: Final answer
    x = 207,499.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.